102502813 has 8 divisors (see below), whose sum is σ = 118463040. Its totient is φ = 86871840.

The previous prime is 102502793. The next prime is 102502823. The reversal of 102502813 is 318205201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102502813 - 2⁵ = 102502781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102502823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81643 + ... + 82888.

It is an arithmetic number, because the mean of its divisors is an integer number (14807880).

Almost surely, 2^102502813 is an apocalyptic number.

It is an amenable number.

102502813 is a deficient number, since it is larger than the sum of its proper divisors (15960227).

102502813 is an equidigital number, since it uses as much as digits as its factorization.

102502813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164627.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 102502813 is about 10124.3672888729. The cubic root of 102502813 is about 467.9993623217. Note that the first 3 decimals are identical.

The spelling of 102502813 in words is "one hundred two million, five hundred two thousand, eight hundred thirteen".